Singly Linked List Insertion
Let's look at the JavaScript implementation for the insertion of a node in a linked list.
We'll cover the following...
Types of Insertion #
The three types of insertion strategies used in singly linked-list are:
- Insertion at the head
- Insertion at the tail
- Insertion at the N-th index
Insertion at Head #
This type of insertion means that we want to insert a new element as the first element of the list. As a result, the head will point to the newly added node, whose nextElement, in turn, will point to the node previously pointed by the head or null value.
The following figure shows how insertAtHead() happens in singly linked-list:
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